https://community.o2.co.uk/t5/Pay-Monthly/2nd-SIM-slot/m-p/1441937#M225051 <P>Hi <a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/3121113">@MJ52</a>&nbsp;</P><P>All O2 phones are unlocked so you will be able to use the voda sim in the 2nd slot.</P> Fri, 19 Feb 2021 13:00:21 GMT Cleoriff 2021-02-19T13:00:21Z https://community.o2.co.uk/t5/Pay-Monthly/2nd-SIM-slot/m-p/1441936#M225050 <P>Hi,</P><P>Wondering, If I upgrade and get a dual SIM phone, using SIM 1 for my 02 account.... Is SIM 2 open to using my work number which is Vodafone, or is SIM 2 also locked to the 02 network?</P><P>&nbsp;</P><P>Thanks</P> Fri, 19 Feb 2021 12:53:12 GMT https://community.o2.co.uk/t5/Pay-Monthly/2nd-SIM-slot/m-p/1441936#M225050 MJ52 2021-02-19T12:53:12Z https://community.o2.co.uk/t5/Pay-Monthly/2nd-SIM-slot/m-p/1441937#M225051 <P>Hi <a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/3121113">@MJ52</a>&nbsp;</P><P>All O2 phones are unlocked so you will be able to use the voda sim in the 2nd slot.</P> Fri, 19 Feb 2021 13:00:21 GMT https://community.o2.co.uk/t5/Pay-Monthly/2nd-SIM-slot/m-p/1441937#M225051 Cleoriff 2021-02-19T13:00:21Z